To understand the second doped metal influence on catalytic activity for N₂O decomposition, the mechanisms of N₂O decomposition over Rh-M(M = Co, Ni and Cu) bimetallic catalysts were investigated by density functional theory (DFT). Co doped into Rh catalyst can increase the activity for N₂O decomposition due to the decrease of the activation energy of rate-determining step while Ni and Cu present contrary performance. A series of corresponding RhM catalysts supported on SBA-15 was prepared and applied in N₂O catalytic decomposition. The catalytic activity trend of Rh-M catalysts for N₂O decomposition is determined as Rh₇Co₁/SBA-15 > Rh/SBA-15 > Rh₇Ni₁/SBA-15 > Rh₇Cu₁/SBA-15, which is in consistency with the corresponding DFT calculation results.

为了理解对于N对催化活性的第二掺杂金属影响₂ ö分解，N的机制₂ ö分解过的Rh-M（M = Co，Ni和Cu）的双金属催化剂通过密度泛函理论（DFT）的影响。掺入Rh催化剂中的Co可以降低速率确定步骤的活化能，从而增加N ₂ O分解的活性，而Ni和Cu则表现出相反的性能。制备了一系列负载在SBA-15上的RhM催化剂，并将其应用于N ₂ O催化分解。确定Rh-M催化剂对N ₂ O分解的催化活性趋势为Rh ₇ Co ₁ / SBA-15> Rh / SBA-15> Rh₇ Ni ₁ / SBA-15> Rh ₇ Cu ₁ / SBA-15，与相应的DFT计算结果一致。